а) 38 54 + 54 = 2 19 3 3 3 + 2 3 3 3 = 2 3 19 3 3 + 2 3 3 3 = 6 19 9 + 2 9 = 54 * 19 + 18 = 1026 + 18 = 1044
б) 34x + 15x = x(34 + 15) = x 49 = 7 7 x = 7^2 x
а) 38 54 + 54 = 2 19 3 3 3 + 2 3 3 3 = 2 3 19 3 3 + 2 3 3 3 = 6 19 9 + 2 9 = 54 * 19 + 18 = 1026 + 18 = 1044
б) 34x + 15x = x(34 + 15) = x 49 = 7 7 x = 7^2 x